[This post has been updated]

This weekend, travelers will be heading for the annual Race for the Cure by the National Mall, the Capital Jazz Fest at Merriweather Post Pavilion, the Vintage Virginia Wine Festival at Bull Run Regional Park and the Washington Folk Festival at Glen Echo Park.

Get out and enjoy what the Capital Weather Gang says should be a delightful weekend, with highs in the 80s and just a chance of late-day thunderstorms. But be aware of some potential delays. Metro’s weekend maintenance and the construction around the Telegraph Road interchange are particularly noteworthy. Here are some of the things you’ll need to know about while getting around during the weekend and beyond.

Metro weekend delays

Metrorail’s maintenance program will have its biggest impact on the Blue Line on Sunday, but there will be delays all weekend on the Blue and Red lines.

Blue Line: On Sunday, as workers rebuild the Telegraph Road bridge over the railroad tracks, Metro will use free shuttle buses to replace Blue Line trains between Franconia-Springfield and King Street. Franconia-Springfield and Van Dorn Street stations will be closed. Riders should allow an extra half hour for travel through the work zone.

Through the midnight closing Sunday, trains will share a track between Stadium-Armory and Addison Road. Workers will be repairing the floating slabs beneath the rails. Riders should allow for 20 extra minutes of travel time through the work zone.

Through closing Saturday, the regular Blue Line service will operate on a shortened route, between Huntington and Largo Town Center. A special shuttle train will operate on a single track between Franconia-Springfield and King Street. Crews will be working on the track in that area..

Throughout the weekend, every other Blue Line train in the direction of Largo Town Center will terminate at Stadium-Armory.

Red Line: Through the midnight closing Sunday, trains will share a track between Grosvenor and Twinbrook. Workers will be fixing the platforms at White Flint and Twinbrook.

Through the Sunday closing, trains will share a track between Takoma and Forest Glen. Workers will be upgrading equipment in train control rooms.

Throughout the weekend, trains will leave the ends of the line at Shady Grove and Glenmont about every 24 minutes. But Saturday and Sunday between 9 a.m. and 9 p.m., additional trains will operate along the interior of the line between Grosvenor and Takoma. In that zone, trains should arrive about every 12 minutes.

Beltway/Telegraph Road

The Wilson Bridge project managers have extensive construction plans for this weekend and next, and they are urging drivers to avoid the area around the Telegraph Road interchange. I’ll review the plans for June 10-12 on Monday. Here’s an outline of the traffic impact for this weekend.

8 p.m. Friday to 5 a.m. Monday: Telegraph Road South will be closed from Duke Street to Mill Road. Telegraph Road North will be closed between the Beltway and Duke Street.

Southbound Telegraph Road

Traffic will not be able to exit from Duke Street onto Telegraph Road South during this time.

Detour for westbound motorists: Continue on Duke Street to Van Dorn South and go left on Franconia Road to Telegraph Road. Detour for eastbound motorists: Continue on Duke Street to Route 1 South and go right on South Kings Highway to Telegraph Road.

The Beltway’s outer loop (I-95/495 North) exit to Telegraph Road South will be closed. Detour: Motorists should take the Van Dorn South exit and go left on Franconia Road to Telegraph Road. Drivers also can use the exit ramp from the outer loop to North Kings Highway toward Route 1 to South Kings Highway to Telegraph Road.

The right-hand ramps from Telegraph Road South to North Kings Highway and to Huntington Avenue will be closed. Motorists will be able to turn left onto both Huntington Avenue and North Kings Highway.

The on-ramp from southbound Telegraph Road to the outer loop will be closed. Detour: Motorists should turn left onto Huntington Avenue East and then left on Route 1 North to the outer loop.

A single southbound Telegraph Road lane will remain open to motorists traveling from Mill Road and from the inner loop (I-95/495 South).

Northbound Telegraph Road

The ramp from northbound Telegraph Road to Eisenhower Avenue will remain open all weekend. The ramp to the outer loop will be closed from 8 p.m. Friday to midday Saturday. During this time, all northbound traffic will need to exit Telegraph Road no later than the ramp to Eisenhower Avenue.

Detour: Motorists heading for the outer loop Friday night and Saturday morning should take Huntington East to Route 1 North to the outer loop ramp.

Motorists will be able to turn right from northbound Telegraph Road onto North Kings Highway and Huntington Avenue.

The Telegraph Road North ramp to the inner loop will be closed. Detour: Motorists should turn right onto Huntington Avenue East and go left on Route 1 North to the inner loop.

The outer loop exit to Telegraph Road North will be closed. The exit ramp to Eisenhower Avenue will remain open. Detour for Outer Loop motorists traveling to Duke Street: Take the Eisenhower Avenue exit ramp and go right at Eisenhower Avenue to the traffic circle to Holland Lane to Duke Street.

Telegraph Road northbound access to East Drive/Lenore Lane and the Beltway will remain open.

Other traffic impacts

Motorists traveling from East Drive will be able to reach southbound Telegraph Road only. To go north, they should take Telegraph Road South to Farmington Drive and do a U-turn.

Motorists on the inner loop will be able to exit at Pershing Avenue, but the exit to Telegraph North/Duke Street will be closed. Detour: To reach Duke Street, take the Pershing Avenue exit and go right on Stovall Street then left on Eisenhower Avenue to the traffic circle to Holland Lane to Duke Street.

Pershing Avenue westbound to Telegraph Road will be closed. Detours: Motorists from the Eisenhower Valley who wish to reach Duke Street should take Eisenhower Avenue East to the traffic circle to Holland Lane to Duke Street. Motorists who wish to reach southbound Telegraph Road should take Stovall Street and go left on Mill Road to Telegraph Road South.

BW Parkway lane closing

The right lane of the southbound Baltimore-Washington Parkway between the Baltimore Beltway and I-195 in Anne Arundel County will be closed from 11 p.m. Saturday through 5 a.m. Sunday. The Maryland State Highway Administration is working on a resurfacing project along that portion of the parkway, which is near Baltimore Washington International Marshall Airport.

Falls Church voting

Two Falls Church City schools will be polling places Sunday for Peruvians voting in their country’s presidential election. The city government anticipates that this may draw thousands of people, arriving in vehicles and on foot.

The polling places will be at George Mason High School, 7124 Leesburg Pike, and Mary Ellen Henderson Middle School, 7130 Leesburg Pike. Polling hours are 7 a.m. to 7 p.m.

The city is encouraging voters to take transit or park at the West Falls Church Metro station garage, and not in neighborhoods or in shopping center parking lots. Illegally parked cards may be towed.

Pay by phone parking

One of the District’s two pay-by-phone parking programs has ended. Verrus Mobile Technologies Inc. discontinued its service this week, a change that affects drivers who pay by phone for parking around Union Station, Dupont Circle, and downtown sections of K Street, I Street and New York Avenue NW.

In July, the District Department of Transportation plans to launch a new citywide program with Parkmobile that will allow residents, workers and visitors to use their mobile phones to pay for parking at all metered street spaces in the city.

Parkmobile already provides pay by phone service for Foggy Bottom, Georgetown Hospital and the streets around Nationals Park. Drivers can sign up at www.parkmobile.com and download a mobile app. After registering with the service, they can use the mobile app, the Internet, or a regular phone call to pay for parking.

Once the phone service is expanded citywide in July, there will be a fee for each transaction. There’s no location where pay by phone is the only option. Drivers still have the option of using cash or credit cards for street parking.

Piney Branch Parkway

The National Park Service says a milling and paving operation will close Piney Branch Parkway between 17th Street NW and Beach Drive NW from 6:30 a.m. to 8 p.m. Saturday.

11th Street Bridge

The District Department of Transportation has temporarily closed the left lane on the 13th Street ramp that leads to the inbound 11th Street Bridge from Anacostia. This closing, which will remain through October, makes room for work related to the construction of the new 11th Street Bridge.

Two lanes will be kept open on the inbound 11th Street Bridge to allow westbound access to the Southeast Freeway, and the two off-ramp lanes that provide access to M Street SE also will stay open.

Freedom Plaza event Sunday

Watch for many pedestrians and some street closings at Freedom Plaza on Pennsylvania Avenue NW in downtown D.C. on Sunday. This is for the fourth annual Washington Post Hunt, a three-hour contest that starts at noon Sunday and involves solving puzzles at various locations in the area.

No vehicular traffic will allowed on Pennsylvania Avenue between 13th and 14th streets NW starting at 6:30 a.m. Sunday. The block will be reopened by 6:30 p.m., D.C. police say.

Maryland bridge inspections

The Maryland State Highway Administration plans several more routine inspections of highway bridges this weekend.

Democracy Boulevard over the I-270 spur in Montgomery County: Watch for closing of two left lanes on the northbound spur from 4:30 a.m. to 11:30 a.m. Saturday. From 4:30 to 11:30 a.m. Sunday, the lane closings will be on the southbound spur.

Martin Luther King Jr. Highway bridges and Glenarden Parkway over the Capital Beltway in Prince George’s County: Watch for closings of two left and two right lanes at various times between 5 a.m. and noon Saturday on the outer loop. From 5 a.m. to noon Sunday, lane closings will occur on the inner loop.

Beltway closings in Tysons

The Dulles Metrorail project plans to resume the overnight lane closings on the Capital Beltway at Route 123, where workers are building the bridges that will carry the tracks over Beltway.

The two right lanes on the inner loop are scheduled to close Sunday from 10 p.m. to 5 p.m.,and Monday from 11 p.m. to 5 a.m.

Crews will close three lanes from 11 p.m. to 5 a.m. Tuesday through Thursday nights and from 10:30 p.m. Friday to 7 a.m. Saturday.

Beltway traffic will be allowed to pass through the interchange, but drivers should expect delays. The inner loop lanes will begin to taper down near Route 7 (Leesburg Pike).

All ramps to and from Route 123 will remain open, except for the ramp from southbound Route 123 to the Beltway’s outer loop, which will be closed in the overnight work hours starting Thursday.

While the ramp is closed, traffic bound for the outer loop will be detoured by continuing on southbound Route 123, then turning right on International Drive, right on Galleria Drive, right on Tysons Boulevard, then a left and immediate entrance to the Beltway.

Frederick lane closings

Several lane closings are scheduled on Frederick city streets next week.

Watch for intermittent lane closings on North East Street between 14th and 15th streets Monday from 8 a.m. to 2 p.m. for installation of electrical equipment

From Tuesday through July 30, intermittent lane closings will occur on Market Street between South Street and West 7th Street for maintenance work.

Race for the Cure

Runners in the annual Susan G. Komen Global Race for the Cure will start at 8 a.m. Saturday at Seventh Street and Madison Drive. The walkers will get going at 8:15 a.m. just to the east at Fourth Street and Madison Drive.

Both routes go west on Constitution and Virginia avenues, then return the same way to 15th Street NW by the Washington Monument and along Jefferson Drive to the finish line on Independence Avenue. See a pdf map of the route.

There will be temporary street closings along the 3.1-mile route until all of the participants have cleared the area, which should be about 11 a.m.

Metrorail will open at 5 a.m. Saturday, two hours earlier than normal. The closest Metro stations are Smithsonian and Federal Center SW on the Blue and Orange lines, Archives on the Green and Yellow lines, L’Enfant Plaza on the Blue, Orange, Green and Yellow lines and Judiciary Square on the Red Line.

The most crowded stations are likely to be Smithsonian, Federal Center SW and Archives. It’s a good idea to load up your paper Farecard or plastic SmarTrip card to cover a round trip and avoid waiting in long lines at the fare vending machines after the event.

Parking at Metro lots and garages is free on weekends, but note Metro’s plans for weekend maintenance work, which will cause delays on some segments of the Blue and Red lines. Add about 30 minutes to travel plans if you’re going through those work zones.